Fix issue with ExportUnityPackage GUID regex

Author: rblenkinsopp

Scripts/ExportUnityPackage.ps1

@@ -109,7 +109,7 @@ function global:Export-UnityPackage
                 $MetaFilePath = "$FilePath.meta"
                 if (-not (Test-Path $MetaFilePath -PathType Leaf)) { Write-Error "Meta file not found: $MetaFilePath"; $AnyErrors = $true; return }
 
-                $MatchSuccess = $(Get-Content $MetaFilePath -Raw) -match 'guid:\s*([0-9A-Fa-f]{32})\s'
+                $MatchSuccess = $(Get-Content $MetaFilePath -Raw) -match 'guid:\s*([0-9A-Fa-f]{32})(?:\s|$)'
                 if (-not $MatchSuccess) { Write-Error "Meta file does not contain GUID or GUID is malformed: $MetaFilePath"; $AnyErrors = $true; return}
                 $guid = $Matches[1]
                 New-Item -Path "$tmpdir/$guid" -ItemType Directory -Force | Out-Null